AHB2 Review - Frank Alles, Stereo Times

"Musically transparent and easy on the ears"

"I believe it is the purest sounding and lowest noise amplifier in my experience."

"Is the AHB2 the “perfect amplifier?” The truth is that it could be when paired synergistically with certain components and speakers."

"What is perhaps most impressive about the AHB2 is its very natural presentation of brass horns, piano and percussion in general."

"The Benchmark AHB2 is a powerful and efficient amplifier with prodigious low levels of noise and distortion. The fact that it is also very musical and non-fatiguing, courtesy of THX’s patented AAA™ technology, is the icing on the cake. Benchmark Media and THX have a lot to be proud of for the development and implementation of the new technology the AHB2 represents."

"The AHB2 provides deep, impactful, and articulate bass, a very musical and transparent midrange, and ultra-clean high frequency reproduction."

"In addition to the AHB2’s impressive bass performance, the midrange sounds extremely pure and clear, not only on vocals, but on many other midrange instruments such as brass horns, woodwinds, piano, and strings of all kinds. But it isn’t merely the stunning clarity of the Benchmark amp that lets one know it’s very special, it is the musicality and authenticity one hears from his or her favorite recordings."

"I very much enjoyed my time evaluating the Benchmark AHB2 amplifier and can heartily recommend it to those seeking one of the lowest distortion and lowest noise amplifiers on the planet—one that is very musically transparent and easy on the ears to boot."

Also in Reviews

Tie for First Place, 16x Price Difference

"This contest produced another tie, and yet another contrast between two wildly different philosophies—economical, if not technical. As Jim Austin pointed out in his initial review, the DAC3 HGC D/A processor from Benchmark Media Systems—a company known for making pro-audio as well as domestic-audio gear—sells for less than the price of certain high-end interconnects. The dCS Vivaldi D/A processor sells for 16 times the Benchmark's price, and in our pages was first reviewed, by Michael Fremer, as part of a $114,996 dCS digital front end."

"Both DACs impressed their respective reviewers with magnificent sound—and in his measurements for both, John Atkinson offered the same one-word conclusion: "Wow!""

"In my September 2018 column, I wrote of my discovery of miniDSP's U-DIO8, which converts multichannel data fed to its USB port to eight S/PDIF or AES-EBU outputs at resolutions of up to 24-bit/192kHz. Armed with a U-DIO8, you can use three or four of your choice of stereo DAC."

"I went commando with the DAC3s directly connected to the three AHB2s. All three DAC3s were set to Home Theater Bypass, and I used JRiver Media Center's volume control."

"For the first time I can recall, I heard no noise from my system, even with an ear flush against a tweeter."

"I know that we audiophiles can obsess about small changes and make them seem more important than they actually are, but that's what this hobby is about: Eliminating as many audible flaws as possible, however tiny. In this case, the effect was striking at first listen, and endured through everything I played, even tracks that had troubled me before."

"RMAF 2018was really good, with significant numbers of attendees, and more new-product introductions than I remembered ever seeing there."

"Led by engineer John Siau and based in Syracuse, New York, Benchmark Media Systems has built a sterling reputation for making compact, well-engineered, moderately priced electronics that challenge the state of the art, both on the test bench and in the listening room."

"What I took notice of were the specifications: total harmonic distortion of less than 0.00006%, and a signal/noise ratio exceeding 135dB from 20Hz to 20kHz."

"If those claims are true, and there’s no reason to believe they aren’t -- Benchmark gear has always performed as specified on the test bench -- the LA4 should be about as transparent-sounding a line-stage as you can find at any price."